I have a late 2008 aluminum Macbook, 2.4Ghz and 2gb of ram, running OS X 10.6.4. I did a reformat and clean install of SL in late spring this year. For the last month or so, everything has become slower and slower. And the last days, it seems like something is writing to disk (I can hear it) all the time, even though I have no programs running and spotlight isn't indexing. The most annoying part is that apps take ages to launch, and while they're launching, if I right click it says "app not responding"; I get beach balls all the time, and simply clicking an icon in top right corner or a menu item in top left takes 3-10 seconds! I'm not running many apps at a time (Safari+Mail+ something else), and it's pretty bad with nothing running as well. At least compared to a clean install. Permissions is repaired, and all regular scripts are run at their designated times... no "hacks" have been done either. Could I have a ram or harddrive issue? This is so annoying and is, ironically, slower and worse than my pre 2007 Windows Vista machine ever was(!). Any ideas what could be wrong?.... edit: just realized I should've posted this in the OS X forum. Sorry!